UDC 003'62 : 621'692 : 621-72 IS : 12139- 1987 Indian Standard . ( Reaffirmed 2003 ) CODE FOR LUBRICATION the lubrication symbols and lubricant and frequency of lubrication. checking and draining/re-packing of lubrication shall SYMBOLS codes, the use of which will facilitate 1. Scope- Laysdown identification 1.1 Frequency 2. Frequency in Table 1. of lubricants of lubrication Symbols -The are not covered be indicated by this standard. shown frequency by use of symbols TABLE 1 FREQUENCY SYMBOLS Symbol Frequency Each shift n 0 SO" 0 Daily Weekly Fortnightly Monthly cl 0 Adopted 10 August 1987 Other intervals to be mentioned as half yearly, yearly and 3 yeariy, etc Life time packed or infinite frequency 621 April 1988, BIB I I OF BHAVAN, g Gr4 BUREAU INDIAN BAHADUR DELHI NEW MANAK SHAH 110002 STANDARDS ZAFAR MARG IS : 12139 - 1987 2.1 Size of Symbols - The sides of the squares, vertical heights of triangles, rhombuses, sions across flats of hexagon and diameters of circles, semicircles shall be 25 mm. 2.1.1 Where cecessary, 15 mm may be used as an alternate size. dimen- 2.2 Material and Method of Indication - Flexible plastics with suitable adhesives or metal tags properly fixed on the equipment are recommended. Alternately symbols may be painted in a convenient place and shall be prominently visible. Identification indications shall be resistant to lubricants. 3. Letter Code for Identification of Lubricating Oils and Greases - For designating oils and greases, code having a combination of letter and digit has been chosen for simplicity, Letter indicating the type of lubricants [ see IS : 11159 ( Part 1 )-I985 `Classification of lubricants, industrial oils and related products: Part 1 Class L'] followed by a digit signifying the viscosity range or consistency range ( of grease ) shall be used for identifying the lubricants. Code letters for oils and greases have been shown in Table 2. Viscosity and consistency classification codes are shown in Tables 3, 4 and 5 respectively. Examples Example Example 1 2 Code C-9 Code T-4 Code X-3 XX-l indicates indicates EP Gear Oil of IS0 VG grade 320 Turbine Oil of IS0 VG grade 46 classification of Grade Example 3 Example indicates grease with consistency 3 as shown in Table 5 4 -Code indicates high temperature grease with consistency classification of Grade 1 as shown in Table 5 3.1 In the case of EP greases, soap base used is also indicated by an extra letter. ( L for lithium soap based, C for calcium soap base, A for aluminium base, B for bituminous bore and N for sodium base ). Example 5 - Code XL-2 EP indicates EP grease having a lithium soap base with consistency classification of Grade 2 as shown in Table 5 Example 6 - Code XC-2 EP indicates EP grease having a calcium soap base consistency classification of Grade 2 as shown in Table 5 4. Classification of Lubricating Oils and Greases 4.1 identification of Oils and Greases - Colour code is indicated for use on lubricant container for identification of lubricant during storage. In addition, letter code is given to facilitate identification and avoid mix-up of different lubricants. Colour code for identifying the oils and greases have been shown in Table 2. Colour indicated in the Table 2 against each lubricant shall be painted in the bottom half of the circle denoting the particular type of lubricant and in the top half of the circle digit corresponding to the viscosity or consistency code shall be painted in the same colour. Circle is divided into two halves and top half with digit shows viscosity or consistency and bottom half with colour shows type of lubricant. 4.1.1 Following illustrations show the application, letter code and colour code. Type of Oil or Grease . . High demulsibility IS0 VG 460 oil of SIO EACH SHIFT procedure to be adopted for indicating the frequency Symbol on Equipment for Frequency of Lubrication -- Lefter Code off ubricanf I Co/our Code to be used on Lobrican t Container ' DARK EP additive gear IS0 VG 320 oil of 0 c9 DAILY 9 0 10 9 RED ORANGE 2 - IS:12139 -1987 Type of Oil or Grease Symbol on Equipment for Frequency of Lubrication Letter Code of Lubricant Co/our Code to be used on Lubricant Container Grease having a consistency of Grade 8 A x3 WEEKLY 3 x3 8 GREEN _Bituminous grease 0 .VG B 60° XB 8 SILVER GREY FORTNIGHTLY - High temperature grease having a consistency of Grade 1 MONTHLY Xl xx1 8 YELLOW -8 H8 8 PERIODS ONE E XCE E DING MONTH FRENCH BLUE Hydraulic 220 oil of IS0 4.1.2 Size and co/our of letters and figures on symbol and lubricants barrels a) The letter code for the lubricant according to 3 shall be indicated on the frequency symbol. The letters and figures shall be 3 mm high. To make the letters prominent, the colourof the same may be chosen depending on the colour of the symbols and strips. b) The letter and colour code for the lubricant shall be painted on the lubricant barrels ( 200 litres or 180 kg capacity ) by the supplier. A circle of 100 mm dia shall be painted on the side of the barrel with the colour as shown in 4.1.1 to indicate the type of the lubricant. The centre of the circle shall be approximately 150 mm below the rim of the barrel and at 6 O-clock or 12 O-clock position keeping the bung, if provided on the barrel at 30-clock position. The letter code for the lubricant shall be painted on the circle using a colour which would make the letters prominent on the background colour. The letters and figures shall be 25 mm high. For other sizes of container, this marking shall be given on top surface or side of container and shall be of suitable size. 4.2 General Information and Description of Lubricating Oils mineral oils are mineral lubricating oils, containing no 4.2.1 Straight mineral oils - Straight additives except perhaps pour-point depressants, of varying degrees of oxidation stability, from lightly refined oils for once through, total loss, lubrication to very highly refined oils for circulating lubrication systems where the life expectancy of the oil is high. This class also includes straight mineral oils produced primarily for steam cylinder lubrication and often used for lubrication of mechanisms operating either under heavy load at low speed or at high temperatures. It does not include such oils, if they are compounded with vegetable oil. 4.2.2 Detergent oils - Detergent oils are mineral lubricating oils containing additives which prevent or reduce the formation of lacquers and gums, such as on the pistons and piston rings of internal combustion engines. 3 IS:12139-1987 TABLE 2 CODE LETTERS AND CODE COLOURS FOR LUBRICATING OILS AND GREASES ( Clauses 3 and 4.1 ) Application/Lubricant Code Letters Name of Colout IS Colour No. Conforming to . 1. Total loss systems and open chain ) Vlould release Sears ( enclosed ) (including & vacuum ( rope A White with black stripes IS : 641.1964* 2. 3. 4. B C D Silver Light grey orange pink 628 557 443 IS : 117-1964t IS : 124 (Part S : 117-1964+ 2)-19793 Compressors refrigeration pumps ) I. C. engines Salmon 5. E 3lack with white dots - IS : 128-19624 IS : 641-1964+ IS : 641-1964' IS : 128-1962s IS : 641-1964* IS 6. Spindle bearing, and associated Slide ways Hydraulic Metal systems bearings clutches F JVhite with black dots - 7. 8. 9. G H M White French Silver blue grey with white dots 166 628 : 641-1964* working IS : 117-1964t IS ; 641-1964* IS IS IO. 11. 12. 13. Electrical Pneumatic insulation tools N P Q Olive green Slate Olive green with white dots 220 634 : 124 (Part 3)-1979li : 117-1964+ - Heat transfer Temporary protection R Golden yellow with French blouse stripes French strlpes Sid",";l blue with white 356 166 166 IS : 124 (Part 2)-1979$ 14. Turbines T IS : 641-1964* 15. Heat treatment U grease red with one white 537 IS IS : 120-1962'11 : 641-1964* 16. 17. 18. Application Other Steam requiring X Y Z Vidigrlp Golden green yellow with white 280 356 218 IS : 117-1964t IS : 124 (Part 2)-1979x applications cylinder Grass green stripes Signal Black Light Grass blue Black brown green stripes with white red IS : 124 (Part 3)-197911 IS: 641-1974" IS 19. 20. 21. 22. High demulsibilityoil oils S L CH 537 : 120-19627 Detergent Hypiod IS : 128-19628 410 with French 218 IS IS gear oil oil : 117-1964t : 124 (Part 3)-197911 Transmission K 23. Emulsion oils J stripes IS; 128-1962s IS : 641-lYti4* white 218 IS : 124 (Part IS : 641-1964* IS : 641-1964* 3J-19i'gli 24. Brake fluid V with bituminous Gyit; green with 25. Grease base XB Verdigris dots green with white 280 26. Premium quality pose grease ) Grease with (multipur- XM Verdigris green black stripes Verdigris green black dot with one 280 IS ; 117-19641 IS : 128-19628 IS : 117-1964t IS : 128-l 9629 27. lothium XL with one 280 ( Continued ) 4 IS :12139-1987 TABLE Sl No. 2 CODE LETTERS AND CODE COLOURS Code Letters FOR LUBRICATING OILS AND GREASES -7 - Contd to Application/Lubricant Name of Colour IS Colour No. Conforming . Grease base Grease with calcium soap xc XA Verdigris green black dots Verdigris green black dots Verdigris green black dots Canary Verdigris yellow green with two 280 IS : 117-1984t : 117-1984t with aluminium with three 280 IS Grease 31. 32. with sodium XN with four 280 IS : 117-1984t High temperature greases grease 309 canary 280 IS Special green with stripes with : II7-1964t Solid Note 1 Note 2 - lubricants Azure blue stripes white -- 104 IS : II7-I9649 IS : 641-1964. It may be necessary to provide a contrasting background It is desirable that lubricant operative should have good For EP grade greases, paint, paint, brushing, brushing, letter EP shall be added after to the symbols. colour perception. Note 3 *Ready mixed tReady mixed ( revised ). JReady mixed §Ready mixed JIReady mixed llReady mixed the code letter. ColoUrS finishing, finishing, finishing, finishing, finishing, finishing, interior, exterior, semi-gloss semi-gloss semi-gloss semi-gloss semi-gloss semi-gloss for for for tor general general general general for general purpose, white ( revised )for general purposes to Indian Stawhrd purposes, purposes purposes, purposes Part 2 (second revision ). black ( revised ). Part 3. to Indian Standard colours. paint, brushing, paint, brushing, paint, brushing, paint, brushing, TABLE 3 VISCOSITY CLASSIFICATION ( Clauses FOR LIQUID LUBRlCANTS 3 and 4.3 ) Code Designation No. IS0 Viscosity Grade Kinetic V$z&i~y . 0 Limits Min Man (1) (2) -_ (3) (4) cst I cst 16'5 24'2 35'2 50.6 74'8 110 165 242 352 506 748 `Viscosity classification for 2 3 4 5 6 7 8 9 IO II IS0 VG 15 IS0 VG 22 IS0 VG 32 IS0 VG 46 IS0 VG 68 IS0 VG 100 IS0 VG 150 IS0 VG 220 IS0 VG 320 IS0 VG 460 IS0 VG 680 13'5 19'8 28'8 41.4 61'2 90'0 135 198 288 414 612 Note industrial - For liquid details reference lubricants'. may be made to IS : 9468-1980 IS : 12139 - 1987 TABLE 4 VISCOSITY CLASSIFICATION (CODE LETI-ER OF AUTOMOTIVE E AND EH ) LUBRICANTS ( Clause 3 ) . SAE Viscosity Engine Oils ( Code Letter E SAE-20 SAE-30 SAE-40 SAE-50 Axle and Transmission ( Code Letter EH ) SAE-80 SAE-90 SAE-140 SAE-250 011s Code Designation No. ) 1 2 3 4 TABLE 5 CONSISTENCY CLASSIFICATION ( Clause 3 ) OF GREASE Grade 000 No. Worked Penetration 445-475 400-430 355-285 310-340 265-295 220-250 175-205 130-160 85-115 00 0 1 2 3 4 5 6 4.2.3 Slideway oils - Slideway oils are mineral oils specifically designed to overcome stick-slip on heavily loaded machine tool slides where either steady motion is required at very low relative speeds or very small precise movements are required at intervals. 4.2.4 Hydrau//c oils - Hydraulic oils are mineral ristics and low pour points, and usually containing foam additives. oils with good viscosity/temperature anti-oxidant, anti-corrosion, anti-wear characteand anti- oils with load-carrying additives, often called mild EP 4.2.5 Gear oils - Gear oils are mineral and designed for the lubrication of gears where the tooth loading ( extreme pressure ) additives, is so high that it cannot be completely supported by straight mineral oil alone. ( Full EP oils, often called active EP oils, such as are used in heavily stressed hypoid gear sets, including automotive hypoid axles would not normally be included but would be considered as specialities ). oils 4.2.6 Turbine oils - Turbine viscosity improvers. The properties washing [ see IS : 1012-1978 `Turbine are petroleum products with suitable additives of the oils shall not be effective by centrifuging lubricating oils ( firsf revision ) I'. having low special properties, and will but without or by water and are each usually be in highly oils are lubricants 4.2.7 Speciality oils - Speciality designsd for a limited range of applications and include: a) refrigerator intimate oils contact which shall be fluid with the refrigerant; at very temperatures b) active extreme cl pressure oils such as are used in automotive stressed hypoid gear sets; and very highly refined mineral oils meeting the requirements regulations. 6 hypoid axles or other of the mineral oils in food IS : 12139 - 1987 4.2.7.1 Special oils, etc, are: lubricants for use in certain machinery, including free-scouring oils, synthetic a) hydraulic oils with special anti-stick slip properties; fire-resistant hydraulic oils; mineral oils blended with some fatty oil, usually called compounded oils and used in applications where there is water or water vapour present; b) other emulsifiable c) synthetic oils. of Lubricating Oil Viscosity classification of lubricating oil shall be oils: and 4.3 Viscositv Classification as given in Table 3.' 4.4 Consistency Classification of Greases - The Grease Institute, USA ) for classifying greases classification of oils, has been generally accepted revised by NLGI, this is as shown in Table 4. system devised by NLGI ( National Lubricating by consistency, corresponding to the viscosity and is widely used all over the world. As recently EXPLANATORY The symbols lubrication. While preparing BS IS0 and codes specified in this standard assistance NOTE are guidelines for systematizing this standard, considerable Lubrication Lubricants national has been derived by the British from the following: Standards Institution. 4412-1969 3498-1979 symbols, for machine Organization 1 issued tools-Classification, for Standardization issued by the Inter( IS0 ). Printed at New India Prlntlng Press, Khuria, lndla